From the screenshots alone, the premise looks simple enough—arrange the square platforms so that the mini Mario has a clear path from the start to the exit. There's four different modes in the game, each of them containing some variation on the main objective: Mario's Main Event gives you random pieces you must put on the board quickly before time runs out, Puzzle Palace gives you a limited amount of tiles but infinite time to deduce the answer, Many Mini Mayhem has you rearranging a preset board but juggling many minis, and Giant Jungle is like Mario's Main Event on aggressive steroids. There's also Mario 64 DS-style minigames, but those are far from the main draw of the game (outside the slightly entertaining Cube Crash).
Out of all of the modes, Puzzle Palace is the closest to the game I imagined Minis on the Move to be. The puzzles start out modest but become unbelievably complicated, with some of the expert stages forcing you to reverse engineer how the designers pieced it together. On one hand the vague direction you're given per level can be really frustrating (the only clue on how to proceed are the colored coins you [usually] collect in a specific order), but on the other hand it leads to some utterly brilliant moments when you finally overcome a puzzle you had to solve from scratch. It had a slight Sudoku/Picross element to it, where you start by realizing which spots absolutely need a piece and then working from there. I'm pleased Puzzle Palace had the most amount of puzzles in the game, as it was a delight all the way to the end.
Mario's Main Event was a nice surprise, but it was a mode that didn't gel with me at times. I like the idea of taking a mode like Puzzle Palace and adding random blocks to it—essentially allowing you to create your own "solution" to each puzzle—but in the latter stages the randomization served to thwart me whenever I had a solution already visualized. Even with the groundwork laid down, I would often lose to the time limit as the mini marched slowly on its way, my stylus incessantly prodding it so that it would hurry up. To succeed you have to work in tandem with the mini's slow pace, hoping you get the right blocks to pop up in your pipe queue, which can be extremely vexing on the larger maps.
Giant Jungle is a monstrosity. As I said above, it's Mario's Main Event except about 5x bigger. The problem is both the absurd length of these levels combined with the severe time restriction—having to collect ten stars and dozens of stopwatches while navigating a massive maze with randomized tiles was all I needed to know that the mode wasn't for me. I had completed every other event in the game so I was content with skipping this one; it's certainly a hardcore challenge for those that are adept at the game.
Despite the family-friendly vibes one may receive from a puzzle game about Mario toys, Minis on the Move can certainly feel very malicious at times. It's less of a deductive puzzle game and more of an adaptive one, encouraging you to piece together solutions on-the-go. Having to tap the mini to make them move rather than pressing a "go fast" button is probably the stupidest design decision I've encountered all year, but other than that I had a decent time overall. I still wish I could've had twice as many Puzzle Palace puzzles...
Images obtained from: howlongtobeat.com, egmnow.com, exophase.com, examiner.com